中北大学学报（自然科学版）2018，Vol.39Issue(3)：277-281,5.DOI:10.3969/j.issn.1673-3193.2018.03.006
弹丸连续挤进对不同坡膛结构受力的影响
Influence of Proj ectile in Continuous Engraving Process on Stress of Different Bore Structures
梁林 1庞博升2
作者信息
- 1. 中国船舶重工集团公司第七一三研究所,河南 郑州450015
- 2. 西北工业大学 航空学院,陕西 西安710072
- 折叠
摘要
Abstract
The working condition of internal ballistics is complex during the firing process of gun.To study the mechanical response during the continuous engraving process,a coupled constitutive model considered visco-plasticity and ductile damage was introduced to establish the finite element of projectile-barrel.The bore structure's stress and strain were simulated during the engraving process,and the dy-namic response of bore during continuous engraving and the impact of different bore were analyzed.The research results reflect that the Von-Mises stress and strain of the initial part of bore grow slowly under the action of continuous engraving for the same bore structure;For the different bore structures,the Von-Mises stress and strain of the initial part of bore gradually decreases when the length of bore increa-ses.关键词
连续挤进/坡膛结构/膛线起始部位/弹炮耦合Key words
continuous engraving process/bore structure/initial part of bore/proj ectile-barrel分类
军事科技引用本文复制引用
梁林,庞博升..弹丸连续挤进对不同坡膛结构受力的影响[J].中北大学学报（自然科学版）,2018,39(3):277-281,5.
